由于单原子Pt稳定嵌入在不饱和五配位铝上,使其具有更高的热稳定性。200 °C下1,3-丁二烯选择性加氢24 h;550 °C条件下己烷重整48 h;100 oC-400 °C条件下CO氧化反应1个月后,该催化剂仍然可以保持单原子状态。 图1: Pt/m-Al2O3单原子催化剂合成示意图 图2:单原子Pt催化剂结构表征 (a,b) 0.2Pt/m...
(a)Pt片, H2PtCl6, PtO2, 0.2Pt/m-Al2O3-O2和 0.2Pt/m-Al2O3-H2的 EXAFS 图, (b) XANES 图, (c) 单原子Pt在氧化铝表面的结构示意图, (d) FT-EXAFS 曲线图, (e) H2-O2滴定曲线图, (f) CO 吸附的红外光谱图, (g)27Al MAS-NMR 图, (h) 不同配位铝含量图, (i) 单原子催化剂和...
For instance, 0.2Pt/m-Al2O3-O2 refers to 0.2 wt% Pt supported on mesoporous Al2O3 which was calcined in air at 400 °C without reduction, whereas 0.5Pt/m-Al2O3-H2 refers to 0.5 wt% of Pt on mesoporous Al2O3, consecutively calcined in air and reduced with H2 at 400 °C. FT...
Inter-conversion of Tb3+ and Tb4+ states and its fluorescence properties in MO–Al2O3: Tb (M=Mg, Ca, Sr, Ba) phosphor materials B. Inter-conversion of Tb3+ and Tb4+ states and its fluorescence properties in MO--Al2O3:Tb (M = Mg, Ca, Sr, Ba) phosphor materials. Solid ......
Aluminum oxide (Al2O3) has abundantly been used as a catalyst, and its catalytic activity has been tailored by loading transition metals. Herein, γ-Al2O3 nanosheets were prepared by the solvothermal method, and transition metals (M = Co, Ni, Cu, Rh, Pd, Ag, Ir, Pt, and Au) were...
浩瀚AL2O3毛细管色谱柱AL2O3/S,AL2O3/M 详细信息 品牌:浩瀚 型号:AL2O3/S,AL2O3/M 加工定制:是 测量范围:C1-C5 测量对象:液化气 控温范围:300 ℃ 尺寸:50000 mm 重量:0.05 Kg 液化气:天然气 炼厂气:变压器油 多氯联苯:植物油 顶空进样器:乙酸乙酯 环氧乙烷:甲醛 橡胶防护蜡:甲酸 活性...
mal2o3-ceo2mpt-ruru ChineseJournalofCatalysis35(2014)1212-1223 催化学报2014年第35卷第7期1.chxb.cn 誊誊囊誊薯 曩 hnj Article Studyofcatalyticactivity (M=Pt—Ru,Ru,andPt}in AiyingSong 一。GongxuanLfi, andproductselectivi ofM/AI203一CeO2 catalyticwetairoxidationofmethylamine aStateKeyLab...
0.2μmAl2O3陶瓷膜微滤清络通痹水提液的污染机制研究林瑛樊文玲郭立玮*南京中医药大学药学院,江苏南京210046[目的]探讨0.2μmAl2O3陶瓷膜微滤清络通痹水提液过程中的膜污染机制。[方法]以清络通痹组方水提液为研究对象,根据Darcy - Poiseuille定律确定过滤阻力分布情况,对污染膜表面和截面进行高分辨扫描电镜观...
采用浸渍法制备了不同V2O5担载量的V2O5/MO-Al2O3(M = Mg, Ca, Sr, Ba)催化剂,钒物种的前驱体为偏钒酸铵.对制备的催化剂进行了一系列表征,并对催化剂上正丁烷选择性氧化脱氢制取丁烯进行了反应研究.表征结果(包括比表面积、X射线衍射、傅里叶红外光谱、氢气程序升温还原和拉曼光谱)...
纯度:Al2O3 : SiO2 97% : 3%% CAS编号:1344-28-1 执行质量标准:企业标准 厂家(产地):福斯曼 产品编号:1301124 名称:氧化铝散纤维 英文名:Alumina bulk fibers 成份:Al2O3 : SiO2 97% : 3% 温度参数:熔点2038℃;使用1700℃ 规格:密度3.4g/cm3;直径3.5μm;长50mm – 100mm 所有产品未能尽列。如有...